Fatal error: Uncaught Error: Class 'PHPUnit_Framework_TestCase' not found in C:\xampp\htdocs\fiveplus\vendor\tymon\jwt-auth\tests\Providers\User\EloquentUserAdapterTest.php:17 Stack trace: #0 {main} thrown in C:\xampp\htdocs\fiveplus\vendor\tymon\jwt-auth\tests\Providers\User\EloquentUserAdapterTest.php on line 17